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Natural Untreated Gemstones

Discover genuine untreated gemstones selected for natural beauty, rarity, and authenticity.

Natural Untreated Gemstones Weight
Natural Untreated Gemstones Size
Natural Untreated Gemstones Clarity
Natural Untreated Gemstones Price
Natural Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
Blue Natural Untreated Gemstones
Brown Natural Untreated Gemstones
Golden Natural Untreated Gemstones
Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
Purple Natural Untreated Gemstones
Red Natural Untreated Gemstones
Turquoise Natural Untreated Gemstones
Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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8.91ct Pink Morganite, Pear Shape, Translucent

8.91ct Pink Morganite, Pear Shape, Translucent

18 x 13 mm (calibrated)

$ 97.62

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1.20ct Pink Morganite, Round, VS

1.20ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 46.61

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3.62ct Brown Rutile Topaz, Cushion, Transparent

3.62ct Brown Rutile Topaz, Cushion, Transparent

9.4 x 7.3 mm

$ 75.12

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17.04ct Pink Morganite, Trillion, Translucent
Morganite Product Video (594890)

17.04ct Pink Morganite, Trillion, Translucent

17 x 17 mm (calibrated)

$ 186.69

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2.32ctw Yellow Beryl, Oval, VVS-VS

2.32ctw Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 50.84

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0.75ct Yellow Beryl, Oval, VS

0.75ct Yellow Beryl, Oval, VS

7 x 5 mm (calibrated)

$ 14.94

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1.31ct Purple Sapphire, Cushion, VS
Sapphire Product Video (448530)

1.31ct Purple Sapphire, Cushion, VS

6.8 x 5.7 mm

$ 691.78

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1.17ct Yellow Beryl, Oval, VVS-VS

1.17ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 23.31

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1.24ct Pink Morganite, Round, VVS-VS

1.24ct Pink Morganite, Round, VVS-VS

7 mm (calibrated)

$ 95.10

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0.82ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

0.82ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

6 x 4 mm (calibrated)

$ 24.50

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1.16ct Pink Morganite, Oval, VS

1.16ct Pink Morganite, Oval, VS

7.8 x 6.3 mm

$ 101.68

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4.89ct White Topaz, Round, VVS-VS

4.89ct White Topaz, Round, VVS-VS

10 mm (calibrated)

$ 22.77

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0.44ct Pink Morganite, Round, VS

0.44ct Pink Morganite, Round, VS

5.3 mm

$ 18.26

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0.07ct Black Diamond, Round, Opaque

0.07ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 23.96

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2.80ct Brown Rutile Topaz, Pear Shape, Transparent

2.80ct Brown Rutile Topaz, Pear Shape, Transparent

10.8 x 7.9 mm

$ 58.10

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1.22ct Purple Spinel, Cushion, VS

1.22ct Purple Spinel, Cushion, VS

7 x 6 mm

$ 182.27

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3.34ct White Topaz, Oval, VVS

3.34ct White Topaz, Oval, VVS

10 x 8 mm (calibrated)

$ 23.29

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1.00ct Purple Spinel, Oval, VS

1.00ct Purple Spinel, Oval, VS

6.4 x 4.9 mm

$ 70.55

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1.33ct Pink Morganite, Oval, VS

1.33ct Pink Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 102.00

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2.82ctw White Topaz, Cushion, VVS-VS

2.82ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 15.45

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1.36ct Yellow Rutile Topaz, Pear Shape, Transparent

1.36ct Yellow Rutile Topaz, Pear Shape, Transparent

8.7 x 5.7 mm

$ 28.22

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0.24ct Pink Morganite, Round, VS

0.24ct Pink Morganite, Round, VS

4.3 mm

$ 9.96

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0.75ct Yellow Beryl, Oval, VVS-VS

0.75ct Yellow Beryl, Oval, VVS-VS

8 x 5.7 mm

$ 14.94

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4.89ct Pink Morganite, Oval, Transparent

4.89ct Pink Morganite, Oval, Transparent

12.7 x 10 mm

$ 48.70

View Gem
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Why Buy Natural Untreated Gemstones from GemSelect?

Why Choose Untreated Gemstones?

Untreated gemstones are valued for their natural color and clarity without artificial enhancement. Many buyers prefer these gems for authenticity, rarity, and long-term value.

Natural Loose Untreated Gems Online

Shop loose untreated gemstones online at GemSelect with confidence. Browse sapphires, rubies, spinels, aquamarine, garnet, tourmaline, and more with full disclosure.

Natural Untreated Gemstones for Jewelry and Collecting

Untreated Gemstones for Jewelry

Natural untreated gems are excellent for rings, earrings, pendants, and custom jewelry. Their original beauty makes every piece unique and meaningful.

Popular Untreated Gemstone Types

Popular choices include untreated sapphire, ruby, spinel, garnet, tourmaline, zircon, aquamarine, and many collector stones in a wide range of colors.

Certified Natural Gemstones

Many buyers choose untreated gemstones with gemological reports for added confidence. Certification can confirm identity and indicate whether treatments are present.

Collector Quality Untreated Gems

Collectors appreciate untreated gemstones because naturally fine examples are rarer than treated material. These stones can be especially desirable when color and clarity are strong.

Calibrated Untreated Gemstones

We also offer calibrated untreated gemstones in popular sizes suitable for standard jewelry settings, making custom designs easier and faster.

Worldwide Shipping from GemSelect

GemSelect offers secure online ordering, detailed product images, and worldwide delivery so you can shop untreated gemstones from anywhere.

Learn more about gemstone treatments, identification, and care on our Gemstone Information Pages.

FAQs

What does untreated gemstone mean?

An untreated gemstone has not undergone enhancement processes such as heating, dyeing, filling, coating, or diffusion to improve appearance.

Are untreated gemstones more valuable?

Often yes, especially in sapphire, ruby, and other premium gems where fine untreated stones are rarer than treated examples.

How can I verify a gemstone is untreated?

Independent laboratory certification is the best way to verify whether a gemstone is natural and untreated.

Which gemstones are commonly sold untreated?

Spinel, garnet, zircon, tourmaline, aquamarine, and some sapphires or rubies are often available untreated depending on source and quality.

Are all untreated gemstones natural?

Natural untreated gemstones are mined stones that have not been enhanced after cutting. Always buy from trusted sellers with clear disclosure.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

It was fine . Wish there had been more round stones to select from

Posted By Emm in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Easy to use. Many options to find the right gemstone

Posted By Liz in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Recomendado Totalmente Los Productos Se Entregaron A Tiempo

Posted By Alexis in May, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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